2 things to do for most of your MBA functioning issues

Discussion in 'MacBook Air' started by ahaxton, Feb 9, 2008.

  1. ahaxton macrumors 6502a

    Jan 17, 2008
    SMU Reset:

    Shut down MBA, Then hold down the left shift key, left control key, left option key, press power button once. Let go of the other keys and wait 15 seconds or so. Then turn on your MBA.

    Battery Calibration:

    Charge fully, Run down your battery all the way into sleep, plug adapter back in and charge up fully

    If you have battery issues, processor issues, fan issues, heat issues, these two things should solve your problems
  2. beatzfreak macrumors 6502

    Jan 11, 2006
    I've already calibrated my battery and I have no issues with it.

    If I do the SMU reset, will that mess up my battery calibration?

  3. MRU Suspended


    Aug 23, 2005
    I did the SMU reset.... my battery is still showing 4:14 to charge and yet is at 55% charge ?

    Will keep an eye on this one.
  4. ahaxton thread starter macrumors 6502a

    Jan 17, 2008
    You'll be fine.
  5. ahaxton thread starter macrumors 6502a

    Jan 17, 2008
    Talked with a genius today, we were trying to come up with conclusions. He also has a MBA. We both came to the conclusion these issues are software related, but can be tweaked to not conflict in the mean time.

    Best solution thus far:

    Playing around with SMU reset, best execution:

    Shut down MBA, unplug power adapter, do SMU reset, turn MBA back on. Leave power adapter unplugged, test functions. Plug adapter back in, try SMU reset again but now with power adapter plugged in. Only do this part with adapter plugged in if first time wasn't a go. We also concluded the power adapter and restarts have a big thing to do with the performance and if you come to experiencing a bug like super speed fans, jittery video, overheating.
  6. SCMedic macrumors regular

    Feb 8, 2008
    Explain "Test Functions". How do you know if this is working or not?
  7. ahaxton thread starter macrumors 6502a

    Jan 17, 2008
    Looking at temps and fan speeds when you run different kind of videos, itunes, hd movies. Extended tests are best like 45 minute videos. Should not experience any stuttering. Also if you plug charger back in (assuming you need to charge it some) you should get more accurate estimates. When I got things back to normal I plugged adapter back in and after a couple minutes it said 2:11 to charge. As minutes went by it fairly accurately went down.
  8. SCMedic macrumors regular

    Feb 8, 2008
    I ran a 1080p mp4 movie for the full two hours with a couple other apps open, and my fan sat around 3k, and temp around 61-65... I'm assuming this is ok considering all the other problems I've read about..No stuttering either.

    I feel that a lot of the video issues are codec related... Hoping for a software update to fix.

    My battery though shows 4870 or so out of a possible 5200.. What's the story with that? Is this a software issue?
  9. Cybergypsy macrumors 68040


    May 16, 2006
    Central Florida!
    Yea thats not bad at all:) seems you have it running well :)
  10. ahaxton thread starter macrumors 6502a

    Jan 17, 2008
    Oh yeah definitely codec and video player related. They all perform differently. I love MKV because shows that I don't have in HD on my HD tv service I can download and watch when I get a chance. MKV should even be able to run fine, but just run pretty hot.

    The battery thing I am convinced is software related.

    I watch itunes downloaded tv shows too. So far though fan does go full speed on those sometime into the shows. I think it may also be because I'm also downloading through itunes more episodes of a season.

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